Tomographic imaging of subducted lithosphere below northwest Pacific island arcs

Details Tomographic imaging of subducted lithosphere below northwest Pacific island arcs Tomographic imaging of subducted lithosphere below northwest Pacific island arcs

Publishing date

Sep 1991

URL

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991natur.353...37v&link_type=abstract

Journals

Nature, Volume 353, Issue 6339, pp. 37-43 (1991).

Science

Physics

Additional info 2

117

Type

Scientific paper

Abstract

The seismic tomography problem does not have a unique solution, and published tomographic images have been equivocal with regard to the deep structure of subducting slabs. An improved tomographic method, using a more realistic background Earth model and surface-reflected as well as direct seismic phases, shows that slabs beneath the Japan and Izu Bonin island arcs are deflected at the boundary between upper and lower mantle, whereas those beneath the northern Kuril and Mariana arcs sink into the lower mantle.

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